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exhaust extension in Perky
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Topic: exhaust extension in Perky (Read 1533 times)
Ken Burdick
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exhaust extension in Perky
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on:
November 28, 2017, 04:01:34 PM »
I may have found a way to get a reflective wave to travel back up a straight pipe. Since this is an "extension" like a mini pipe, is it legal in Perky?
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C.T. Schaefer
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Re: exhaust extension in Perky
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Reply #1 on:
November 28, 2017, 05:04:20 PM »
I define mini pipe as a constant diameter from one end to the other. But....... I did not make the rules. TS
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Dave Edwards
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Re: exhaust extension in Perky
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Reply #2 on:
November 28, 2017, 06:09:49 PM »
And I have some long, skinny f2d mufflers that add a few rpm, are these ok? Seems open to interpretation and maybe we should tighten up the rules to eliminate any extensions/mufflers/pipes???
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Al Ferraro
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Re: exhaust extension in Perky
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Reply #3 on:
November 28, 2017, 08:25:19 PM »
From the AMA website.
A minipipe cannot be longer than six inches from the centerline of the engine bore to the end of pipe. The inside diameter of the pipe shall be of constant size.
Mufflers are legal in Perky.
Al
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Paul Smith
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Re: exhaust extension in Perky
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Reply #4 on:
November 28, 2017, 09:01:25 PM »
per NASS Perky rules.
7. No Tuned Pipes or Megaphone exhaust extensions allowed. Mini
Pipes and Mufflers are ok.
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Paul Smith
Ken Burdick
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Re: exhaust extension in Perky
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Reply #5 on:
November 29, 2017, 08:46:14 AM »
so it's legal.
Thanks!
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Russell Shaffer
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Re: exhaust extension in Perky
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Reply #6 on:
November 29, 2017, 04:05:08 PM »
Hey Ken. Will it work on a LA25?
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Russell Shaffer
Klamath Falls, Oregon
Just North of the California border
Paul Smith
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Re: exhaust extension in Perky
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Reply #7 on:
November 29, 2017, 06:51:20 PM »
All depends on what you call "work". If it reduces noise or gets the exhaust out of the airplane, it works OK.
If it enhances power, then it's a tuned pipe and thus illegal.
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Paul Smith
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exhaust extension in Perky
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